82 



Botanical Section 



[PT I 



empty glumes are not serrated above, and the lower glume is 

 from 5 to 7 nerved. The outer palea is also usually more hairy, 

 and broader. (Fig. 72.) 



In all other respects the description given above of B. arvensis 

 applies to this form also. 



Fig. 73. Panicle of Bromus sterilis. About J nat. size. 



Bromus racemosus, L. (= B. commutatus, Schrad.) This is a 

 more glabrous form of B. mollis. Its "seeds" are entirely glabrous 

 except for the marginal hairs on the inner palea. 



Bromus sterilis, L. (Barren Brome-grass.) (Fig. 73.) 

 An annual or biennial, growing about two feet high. Most 

 common in waste places and near hedges. Sheaths entire, keeled, 

 and striated. Blade rolled in the shoot, thin, dry, ribless, keeled 



